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Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=180 Last checked: 08/01/2013 Requires: PDF Reader Notes: Item is within a single large file |
Publication Type:
| Report |
Author(s): | McCullough, P. E.;
Schwartz, B. |
Author Affiliation: | University of Georgia |
Title: | Preemergence herbicides influence establishment of bermudagrass and seashore paspalum putting greens |
Section: | Weed management in turf Other records with the "Weed management in turf" Section
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Meeting Info.: | Little Rock, Arkansas: January 25-27, 2010 |
Source: | 2010 Proceedings, Southern Weed Science Society. Vol. 63, 2010, p. 130. |
Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
# of Pages: | 1 |
Keywords: | TIC Keywords: Application rates; Cultivar evaluation; Cynodon dactylon; Cynodon dactylon x Cynodon transvaalensis; Dimethenamid; Establishment; Golf greens; Herbicide evaluation; Metolachlor; Oxadiazon; Paspalum vaginatum; Preemergence herbicides; Weed control
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Cultivar Names: | Miniverde; Champion; TifEagle; Sea Isle Supreme |
Abstract/Contents: | "Field experiments were conducted to investigate the influence of preemergence herbicides on bermudagrass and seashore paspalum putting green establishment. Experiments were conducted in Griffin, GA and Tifton, GA from June to December 2009. 'Champion', 'MiniVerde', and 'TifEagle' bermudagrass were sprigged on June 15 and June 16, 2009 in Tifton and Griffin, respectively. At both locations, grasses were sprigged in a randomized complete block with three replications, topdressed, rolled, and irrigated. Ten treatments were applied per grass immediately after planting, including dimethenamid at 0.84, 1.68, or 3.36 kg ai/ha, metolachlor at 1.1, 2.2, or 4.4 kg ai/ha, and oxadiazon at 1.1, 2.2, or 4.4 kg ai/ha, plus an untreated check. In Griffin, these treatments were applied on June 24 to 'Sea Isle Supreme' seashore paspalum approximately five days after sprigging. In another experiment, dimethenamid in a granular or liquid formulation was applied at 1.68 kg/ha approximately five days after sprigging the five aforementioned cultivars. Turf cover was visually rated on a percent scale every four weeks in all experiments. All herbicides reduced bermudagrass establishment after four weeks ranging 20 to 74% from the untreated. Reductions in bermudagrass cover increased with herbicide rate but treatment effects were consistent across cultivars. After eight weeks in Griffin, dimethenamid at 3.36 kg ai/ha reduced bermudagrass cover 10% from the untreated while other treatments did not reduce turf cover. In Tifton, all treatments except the two high rates of dimethenamid and the highest rate of metolachlor had more bermudagrass cover than the untreated. Greater bermudagrass cover in herbicide treated plots resulted from weed control relative to the untreated turf. By 16 WAT, untreated bermudagrass had 84% cover but turf treated with all herbicides had greater cover, ranging 92 to 100%. On the seashore paspalum putting green, oxadiazon at 2.2 and 4.4 kg/ha reduced turf cover by 40 and 45% from the untreated, respectively, after eight weeks. Turf treated with other herbicides had similar turf cover to the untreated. By sixteen weeks after sprigging, oxadiazon at 4.4 kg/ha reduced seashore paspalum cover by approximately 30% from the untreated while turf treated with other herbicides had similar cover to the untreated. In other experiments, differences between granular and liquid dimethenamid formulations were not detected in the establishment of 'Champion', 'MiniVerde', and 'TifEagle' bermudagrass and 'Sea Isle 1' and 'Sea Isle Supreme' seashore paspalum. Dimethenamid reduced seashore paspalum and 'Champion' bermudagrass cover by 10 to 20% from the untreated by four weeks after sprigging but turf recovered similar to the untreated after eight weeks. Overall, low to moderate rates of dimethenamid, metolachlor, or oxadiazon appear to have potential for use during establishment of bermudagrass and seashore paspalum putting greens. These treatments have potential to temporarily inhibit turf growth but weed control from these herbicides may allow quicker establishment from the untreated." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): McCullough, P. E., and B. Schwartz. 2010. Preemergence herbicides influence establishment of bermudagrass and seashore paspalum putting greens. South. Weed Sci. Soc. Proc. 63:p. 130. |
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| Web URL(s): http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=180 Last checked: 08/01/2013 Requires: PDF Reader Notes: Item is within a single large file |
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